Bhopal, September 30: Shehla”s father, Masood Sultan when contacted about the progress in the case said he was not an expert to offer any comment on the CBI probe. Former district president of Congress Minority Cell, S M Salman alleged that evidences were destroyed at the initial stage of the crime. “Her cell phone was also tampered with. All this suggest a conspiracy to protect high and mighty people,” he said. The party”s minority cell is staging a sit-in at the Iqbal Maidan here this afternoon to protest the slow progress in the investigations.